title: Lithium-induced parathyroid dysfunction: A new case.
abstract: Lithium salts are widely used in psychiatric practice and are known to induce thyroid dysfunction. Lithium-induced parathyroid dysfunction is rare. We are reporting a case of hyperparathyroidism in a 28-year-old female patient who was on lithium carbonate for 2 years, when she developed osteopenia and girdle girdle-type muscle weakness. Biochemical parameters showed hyperparathyroidism with shift of calcium creatinine clearance ratio to 0.013, indicating an error in threshold of calcium sensing receptor. The patient eventually required parathyroidectomy and the histology of the gland showed atypical features.
authors.affiliation: Department of Surgery, Surgical Endocrinology Division, Amrita School of Medicine, Kochi, Kerala, India.
authors.forename: C Gopalakrishnan
authors.initials: CG
authors.lastname: Nair
authors.forename: Riju
authors.initials: R
authors.lastname: Menon
authors.forename: Pradeep
authors.initials: P
authors.lastname: Jacob
authors.forename: Misha
authors.initials: M
authors.lastname: Babu
keywords: Atypical adenoma; calcium sensing receptor; hyperparathyroidism; lithium